英语三级B级
A．They put them in plastic bags.
B．They use ice to keep the temperature down.
C．They cover them with thick cloth.
D．They do nothing.
【解析】题干意为“如果人们没有冷冻设备，那么他们怎样搬运已备好的食物?”从第二段末尾句“If you haven’t had a freeze pack．then you’ll need to go out and buy a bag of ice．”可以找到答案，故选B。
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